Daniel mcdowell



NAFET'ERS. PHO HER. WASHINGTON D C lUNrTan STATES PATENT DANIELMCDOWELL, OF KINGSTON, WEST INDIES.

Specification forming part of Letters Patent No. 53,091, dated March 6,1866.

To all whom t may concern Be -it known that I, 'DANIEL MODOWELL, ot'Kingston, Jamaica, West Indies, have invented a new and usef'ulImprovement in Devices for Cleaning Flues of Steam-Boilers; and I dohereby declare that the following is a full, clear, and exactdescription thereof, which will enable others skilled in the art to makeand use the same, reference being had to the accompanying drawings,forming part of this specification, in which- Figure 1 represents alocomotive to Whose boiler an apparatus made according to my inventionis applied. Fig. 2 is an end view of the locomotive, also showing theapparatus.

Similar letters ot' reference indicate like parts.

This invention relates to an improved arrangement for cleaning the iiuesof tubular boilers,whether of locomotive or other engines or tubularboilers used in other connections. The iiues of such boilers veryrapidly become foul with dcposits'of soot, ashes, and cinders, whichchoke some of them, and consequently diminish the steam-generatingcapacity of the boiler. If the flues are notwell and properly l cleaneda great waste of fuel is one of the rearrangement ofthe steam-pipe Fwith a nozzle.

or jet pipe. E, in the manner hereinafter described. The pipe may begas-pipe or any other which will endure the pressure of the steam, whichin locomotive engines is often very great, land it is made with jointsat convenient places therein, so as to be capable of being turned in anydirection. A cock is placed on the pipe near the boiler to shut oifsteam from the apparatus when not in use, and another cock is placed onthe nozzle, or near it, to shut off steam when moving` from tube totube. It may be applied to the tubes through the smoke-box or throughthe lire-box, and by its use a boiler containing one hundred tubes canbe cleaned in ve minutes, and done so perfectly that any adheringparticles of crust and dirt will be removed and the amc and heated airfrom the iire be allowed to. act with box Cof the engine,or through thesmoke-box. l

The pipe is here shown connected to the dome of the boiler, and near theplace of its connection therewith the pipe has acock, G, and anothercock is placed in the pipe F. In the door of the Jrire-box O is anopening, D, which may be closed by a smaller door, and through thisopening in the door the pipe E is inserted and its end presented withinthe liuc-tubes B one after the other when steam has been admitted to theapparatus.

The apparatus is easily controlled and operated by means of its handleH. The pipe'E may or may not be inserted into the tubes. It willaccomplish good results it' itis brought to the distance of about aninch of their ends and passed from one to the other, when it will cleanthem and blow the dirt up the chimney. When the pipe is applied to theother end ofthe tubes the dirt will bc blown into the tire-box.

I disclaim the rubber tubing for this purpose. Such tubing could notendure the heat of the fire, and therefore could not be used when thefurnace is in active operation.

Having thus described my invention, I claim as new, and desire to secureby Letters Patent- The arrangement of the jointedpipes F` with thenozzle-pipe E and the auxiliary opening D, whereby to clean the flues ortubes of steam-generators, as herein set forth.

The above specification of my invention signed by me this 6th day ofOctober, 1865.

DANIEL MCDOWELL.

Witnesses: l y A. G. HENDERICK, STEPHEN LAUDI KNAPP.

